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KR970070170A - 폴리올 에스테르계 윤활유 - Google Patents

폴리올 에스테르계 윤활유 Download PDF

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KR970070170A
KR970070170A KR1019970012855A KR19970012855A KR970070170A KR 970070170 A KR970070170 A KR 970070170A KR 1019970012855 A KR1019970012855 A KR 1019970012855A KR 19970012855 A KR19970012855 A KR 19970012855A KR 970070170 A KR970070170 A KR 970070170A
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polyol ester
mixture
polyol
carbon
ester
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요시히로 시오까와
요시후미 사또
긴지 가또
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오히라 아끼라
미쯔비시 가스 가가꾸 가부시끼가이샤
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Abstract

본 발명은 산 잔기의 α-탄소가 3급으로 분지되어 있고, 탄소 원자수 4 이상의 알킬기가 α-탄소에 결합되는 경우 알킬기는 분지되어 있는 네오펜틸 폴리올 에스테르 및 탄소 원자수 6 내지 17의 산 잔기로 이루어진 폴리올 에스테르(A) 및 산 잔기의 α-탄소가 2급 또는 3급으로 분지되어 있고, α-탄소에 결합된 알킬기가 직쇄인, 네오펜틸 폴리올 에스테르 및 탄소 원자수 6 내지 17의 산 잔기로 이루어지는 폴리올 에스테르(B)를 포함하는 폴리올 에스테르계 윤활유에 관한 것이다. 본 발명의 폴리올 에스테르계 윤활유는 40℃에서 동점도가 28내지 40cst의 범위로 대체 플루오르카본과의 상용성이 높고, 내가수분해성이 우수하며, 유동점이 낮은 고성능 윤활유이다.

Description

폴리올 에스테르계 윤활유
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (12)

  1. 산 잔기의 α-탄소가 3급으로 분지되어 있고, 탄소 원자수 4 이상의 알킬기가 α-탄소에 결합되는 경우 알킬기는 분지되어 있는 네오펜틸 폴리올 에스테르 및 탄소 원자수 6 내지 17의 산 잔기로 이루어진 폴리올 에스테르(A) 및 산 잔기의 α-탄소가 2급 또는 3급으로 분지되어 있고, α-탄소에 결합된 알킬기가 직쇄인, 네오펜틸 포릴올 에스테르 및 탄소 원자수 6 내지 17의 산 잔기로 이루어지는 폴리올 에스테르(B)를 포함하는 폴리올 에스테르계 윤활유.
  2. 제1항에 있어서, 폴리올 에스테르(A) 70 내지 85중량% 및 폴리올 에스테르 (B) 15 내지 30중량%를 포함하는 폴리올 에스테르계 윤활유.
  3. 제2항에 있어서, 폴리올 에스테르(A)가 하기 화학식(1)로 나타내는 이소-옥텐 유래의 폴리올 에스테르 혼합물(A)이고, (1) 5≤m≤9 및 5≤n≤8인 폴리올 에스테르 52.0 내지 58.0 중량%, (2) 5≤m≤8 및 8≤n≤16인 폴리올 에스테르 38.0 내지 44.0 중량%, (3) 8≤m≤16 및 8≤n≤16인 폴리올 에스테르 3.0 내지 7.0 중량%(m 및 n는 각각 정수임)로 이루어지는 것이고, 폴리올 에스테르(B)가 하기 화학식(2)로 나타내는 1-옥텐 유래의 폴리올 에스테르 혼합물(B)이고, (4) 5≤p≤8 및 5≤q≤8인 폴리올 에스텔 93.0 내지 97.0 중량%, (5) 5≤p≤8 및 8≤q≤16인 폴리올 에스테르 3.0 내지 5.0 중량%, (6) 8≤q≤16인 폴리올 에스테르 0.1 내지 4.0 중량% (p 및 q는 각각 정수임)로 이루어지는 것인 폴리올 에스테르계 윤활유.
  4. 제2항에 있어서, 유동점이 -40℃ 이하인 폴리올 에스테르계 윤활유.
  5. 제2항에 있어서, 수분 함량 1,000ppm 이하 및 산가 0.01mgKOH/g 이하로 조정된 폴리올 에스테르 시료를 1,1,1,2-테트라플루오로에탄 및 촉매로서 철, 구리, 및 알루미늄과 함께 시험관에 넣고 밀폐하여 혼합물을 200℃에서 28일동안 가열한 후에 측정된 산가가 0.02mgKOH/g 이하인 폴리올 에스테르계 윤활유.
  6. 제1항에 있어서, 폴리올 에스테르계 윤활유와 1,1,1,2-테트라플루오로에탄올 9/1의 중량비로 혼합시킬때, 혼합물의 상분리 온도가 저온측이 -60℃ 이하이고 고온측이 100℃ 이상인 폴리올 에스테르계 윤활유.
  7. 제2항에 있어서, 폴리올 에스테르계 윤활유와, 25/32/52의 중량비로 혼합된 디플루오로메탄, 펜타플루오로에탄 및 1,1,1,2-테트라플루오로에탄의 플루오로카본 혼합물을 9/1의 중량비로 혼합시킬 때, 혼합물의 상분리 온도가 저온측이 -45℃ 이하이고 고온측이 80℃ 이상인 폴리올 에스테르계 윤활유.
  8. 제1항에 있어서, 폴리올 에스테르계 윤활유와, 50/50의 중량비로 혼합된 디플루오로메탄 및 펜타플루오로에탄의 플루오로카본 혼합물을 9/1의 중량비로 혼합시킬 때, 혼합물의 상분리 온도가 저온측이 -30℃ 이하, 및 고온측이 60℃ 이상인 폴리올 에스테르계 윤활유.
  9. (A) 디플루오로메탄, 펜타플루오로메탄 및 1,1,1,2-테트라플루오로에탄의 플루오로카본 혼합물과, (b)제1항의 폴리올 에스테르계 윤활유를 포함하는 냉동기 작동 유체.
  10. 제9항에 있어서, 디플루오로메탄/펜타플루오로메탄/1,1,1,2-테트로플루오로에탄의 중량비가 23/25/52인 냉동기 작동 유체.
  11. (a) 디플루오로메탄, 펜타플루오로에탄의 플루오로카본 혼합물과 (b) 제1항의 폴리올 에스테르계 윤활유를 포함하는 냉동기 작동 유체.
  12. 디플루오로메탄/펜타플루오로에탄의 중량비가 50/50인 제2항의 냉동기 작동 유체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970012855A 1996-04-09 1997-04-08 폴리올 에스테르계 윤활유 Abandoned KR970070170A (ko)

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JP96-86596 1996-04-09
JP8659696 1996-04-09

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SG73448A1 (en) 2000-06-20
DE69708492T2 (de) 2003-01-09
TW349119B (en) 1999-01-01
US5716916A (en) 1998-02-10
CN1168409A (zh) 1997-12-24
EP0801129A3 (en) 1997-12-29
DE69708492D1 (de) 2002-01-10
ID16550A (id) 1997-10-09
CN1062895C (zh) 2001-03-07
EP0801129B1 (en) 2001-11-28
EP0801129A2 (en) 1997-10-15

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